"Holding you close and giving you kisses aren't the only symbols of love, Small Lady. Quietly watching from afar is a kind of love too."
As Sailor Pluto, she guarded the Space-Time Door, and she originally could not leave her post, which left her very lonely. However, Neo-Queen Serenity allowed her to leave her post to help the other Senshi of the Outer Solar System during the events of the S season, and she was reincarnated as an adult in the present time during the Death Busters arc, where she took on the identity of Setsuna Meiou, a K.O. University student studying physics.
1) She is the tallest among the Solar System Sailor Senshi with the height of 5'10" (about 178 cm), but ironically, her guardian Planet is the smallest.
2) Setsuna became part of an adoptive family with Haruka, Michiru, and Hotaru when they took up residence together.
3) In the manga, Sailor Pluto also made several references to being the daughter of Chronos, and in Act 20, King Endymion told Sailor Venus that Pluto "carries the blood of the god in charge of time, Chronos." In the musicals, the song "Forbidden Hades" also mentioned that she had the blood of Chronos.